Wednesday, October 7 · our forecast odds · issued Tue 10:00 AM ET · 3 nonstops

Tomorrow: WN 648 at 05:28 is the safest bet, 5% chance of being 15+ min late; the others run 9–23%.

Safest bet that day WN 648 PIT 05:28 → TPA 08:01 · 5% chance 15+ min late Riskiest WN 2376 PIT 16:38 → TPA 19:11 · 23% chance 15+ min late

Against a calm day 12% average chance a nonstop arrives 15+ min late; 5% for the same flights on a calm-weather day

Every nonstop on Wed, Oct 7

12-month record →

Ranked by the chance of arriving 15+ minutes late, with each flight’s on-time record over Aug 2025 – Jul 2026 beside it. Times are local. Pick a flight for its forecast. Click a column to sort.


WN 648 Southwest	PIT 05:28	TPA 08:01	5%	2%	1.3%	no record
WN 1709 Southwest	PIT 07:33	TPA 10:06	9%	2%	1.3%	no record
WN 2376 Southwest	PIT 16:38	TPA 19:11	23%	10%	1.3%	no record

How these are worked out. Each flight’s odds are our forecast for that day; flights of airlines we don’t forecast yet use their 12-month record and are marked. Makes the connection: the first flight’s 12-month lateness curve, scaled so its chance of arriving 15+ min late matches the day’s forecast, at the layover minus the 45-minute minimum (90 on separate tickets). Arrives on time: first flight not cancelled × connection made × second flight not cancelled × second flight within 15 minutes, each from the day’s forecast.

About this data: forecast odds from our model for Wed, Oct 7 (newest published update); 12-month records from US DOT on-time data, Aug 2025 – Jul 2026, all US airlines; regional flights count under the airline that sells them. JSON